3811666 has 16 divisors (see below), whose sum is σ = 6183360. Its totient is φ = 1756080.

The previous prime is 3811657. The next prime is 3811669. The reversal of 3811666 is 6661183.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3811669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (386460).

Almost surely, 2^3811666 is an apocalyptic number.

3811666 is a deficient number, since it is larger than the sum of its proper divisors (2371694).

3811666 is a wasteful number, since it uses less digits than its factorization.

3811666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769.

The product of its digits is 5184, while the sum is 31.

The square root of 3811666 is about 1952.3488417801. The cubic root of 3811666 is about 156.2086021528.

The spelling of 3811666 in words is "three million, eight hundred eleven thousand, six hundred sixty-six".